What are the requirements for hydraulic vane pumps on internal combustion engines?

1: The hydraulic pump is only part of the internal combustion engine drive load 

When the hydraulic pump is only part of the load driven by the internal combustion engine, the power of the internal combustion engine is large and can always meet the power required by the hydraulic pump. The speed of the internal combustion engine should match the speed of the hydraulic pump. High-speed internal combustion engines generally require deceleration hydraulic equipment to enable the die-casting oil pump to operate within the speed range.

2: All the power of the internal combustion engine is used to drive the hydraulic pump 

A system in which all the power of the internal combustion engine is used to drive the hydraulic pump is called a fully hydraulic drive system. The fully hydraulic drive system of mobile machinery generally uses a volumetric speed regulation system with a variable pump or variable motor to meet the requirements of large speed changes of the mobile machinery. The maximum speed of the internal combustion engine should be suitable for the maximum flow required by the hydraulic system and should not exceed the maximum speed of the hydraulic pump. If the internal combustion engine speed is too high, a deceleration device should be installed. The maximum power of the internal combustion engine should be slightly greater than the maximum power required by the hydraulic system.

In the entire die-casting oil pump system, the hydraulic pump is the power component, while the internal combustion engine and the driven motor are the source of power conversion for the hydraulic pump. Therefore, the importance of the internal combustion engine or electric motor is obvious. When selecting and deploying in this area, you must Steady, steady and steady!

The hydraulic pump is the power component of the hydraulic system. Its function is to provide pressure oil to the hydraulic system. From the perspective of energy conversion, it converts the mechanical energy output by the prime mover (such as an engine) into pressure energy of liquid that is easy to transport. The hydraulic motor is an actuator that converts the pressure energy of the input liquid into the mechanical energy of the output shaft rotation, which is used to drag the load to do work. According to the structural form, hydraulic pumps and hydraulic motors can be divided into gear type, vane type, plunger type and other types.

3: Hydraulic pump pressure 

The working pressure of a hydraulic pump refers to the pressure of the oil output (or input) of the pump (or motor) during actual operation, which is determined by the external load.

Rated pressure refers to the highest pressure that can be operated continuously according to test standards under normal working conditions. Its size is limited by its service life. If it works beyond the rated pressure, the service life of the pump (or motor) will be shorter than the designed life. When the working pressure is greater than the rated pressure, it is called overload.